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cosec^2 45°=√2 , sec^2 30° = 2/√3
sin^2 30°=1/2 , cot^2 45°=1 , sec^2 60°=2
put this values in trigonometric equation,
(cosec^2 45° sec^2 30°)(sin^2 30°+4cot^2 45°
- sec^2 60°)
= (√2)^2 (2/√3)^2 [ ( 1/2)^2 +4(1)^2 -(2)^2 ]
= (2)(4/3) [ (1/4)+ 4 - 4]
= (8/3)(1/4)
4 cancelled 8 by 2
= 2/3
Hope this will be the answer.
Thanks for watching the answer.
sin^2 30°=1/2 , cot^2 45°=1 , sec^2 60°=2
put this values in trigonometric equation,
(cosec^2 45° sec^2 30°)(sin^2 30°+4cot^2 45°
- sec^2 60°)
= (√2)^2 (2/√3)^2 [ ( 1/2)^2 +4(1)^2 -(2)^2 ]
= (2)(4/3) [ (1/4)+ 4 - 4]
= (8/3)(1/4)
4 cancelled 8 by 2
= 2/3
Hope this will be the answer.
Thanks for watching the answer.
aman9340:
Hope this was helpful for you
i already had solved and given answer before you
I know
ok
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